product description 1.Bluetooth4.0 Stably and fast connected: Built-in advanced sensor, no need to install driver or software, just open bluetooth on device and connect it. connection automatically every time when open your computer (compatible bluetooth 4.0 / 3.0 / 2.0 ).if you use wireless mouse on iPad/iPhone,please upgrade IOS to 13 or higher,1: open bluetooth 2click: Setting-Accessibility-Touch-Assistive touch (open it) -Devices-find and connect "Bluetooth mouse"-Enter match code '0000' or '1234 2.Silent Click: Reduce noise by up to 90%, Almost no noise when your computer is running, ideal Mouse for office, home and leisure. Ergonomic and comfortable grip, The surface coating gives you a soft touch. 3.Rechargeable with lithium battery: Mouse is supplied with a USB cable for recharging, you can use it even when recharging. Battery low will cause the cursor to be inaccurate and Bluetooth to disconnect.The two-hour charger allows use of 3-4 weeks, standby in automatically when not use.The mouse's battery may be exhausted due to long-term transportation, Please charge the mouse after received 4.Super compatibility: Compatible with Windows, iPad / iPhone(iOS 13.1.2 and later version), Mac OS X (not for Mac OS 10.13.3 and Mojave system), Compatible with Android and Linux.Macbook, Tablet, Lenovo, Asus, HP, Surface, etc. 5.Portable and Easy to Use: lightweight mouse, Easy to control, is easy to store in a laptop bag, which is perfect to take it with you. 3 adjustable DPI levels (800-1200-1600 DPI), allow you to freely control the speed of the mouse. And the shape allows right hand / left hand to use. Its matt black color makes it even more beautiful